package com.lagou.cl.mapper;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

import java.io.IOException;


public class SortMapper extends Mapper<LongWritable, Text, IntWritable, NullWritable> {


	private IntWritable intWritable = new IntWritable();

	@Override
	protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {

		String val = value.toString();
		int i = Integer.parseInt(val);
		
		intWritable.set(i);
		context.write(intWritable, NullWritable.get());

	}
}
